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Ch 8, Les 1-3, 7th Grade
Test Description: Animals
Instructions: Answer all questions to get your test result.
1) Nerve cells that detect stimuli
A
impulse neurons
B
interneurons
C
sensory neurons
D
motor neurons
2) A ___ is a group of neurons that receives information, interprets it, and controls an animal's response.
A
nerve net
B
nerve cord
C
brain
D
lung
3) A hard outer covering that supports the animal and protects it
A
water vascular system
B
exoskeleton
C
hydrostatic skeleton
D
endoskeleton
4) Some animals don't have skeletons with hard parts.
A
false
B
true
5) An arthropod must periodically ___ when they grow because their skeletons are too small.
A
impulse
B
molt
C
respond
D
grow
6) Which is true of endoskeletons?
A
they contain living cells
B
vertebrates with endoskeletons grow larger tahn animals with exoskeletons
C
all of the above
D
endoskeletons are relatively light
7) Vertebrates do not have jointed appendages.
A
true
B
false
8) Muscles can be found
A
attached to the inside of exoskeletons
B
inside organs
C
attached to the outside of bones or cartilage
D
all of the above
9) Which of the following happens at a joint?
A
two parts of a skeleton meet
B
a new exoskeleton is formed
C
muscle cells grow
D
spikelike structures are made in cells
10) Cartilage is ___ flexible than bone.
A
equally as
B
less
C
more
D
none of the above
11) Nerve cells that carry response information to muscles and other organs
A
sensory neurons
B
interneurons
C
motor neurons
D
impulse neurons
12) The odor of baking bread is an example of a(n)
A
impulse
B
response
C
neuron
D
stimulus
13) Animals move to
A
all of the above
B
maintain homeostasis
C
obtain food
D
defend and protect themselves
14) A squid moves through the water using
A
flippers
B
jet propulsion
C
webbed feet
D
streamlined bodies
15) An internal, gas-filled sac that helps a fish stay at a certain depth
A
swim liver
B
floatation bladder
C
balance bladder
D
swim bladder
16) A system of fluid-filled tubes that allow echinoderms to grip surfaces and move along
A
oily livers
B
swim bladders
C
water vascular system
D
hydrostatic skeletons
17) A nerve cell with a unique structure for receiving and passing on information
A
nucleus
B
neuron
C
joint
D
synapse
18) Animals with many sense organs can process many stimuli at the same time.
A
false
B
true
19) Which does NOT have an endoskeleton?
A
birds
B
earthworm
C
camel
D
Teddy Cat
20) Sharks and some fishes have endoskeletons made of
A
spikes
B
bone
C
skin
D
cartilage
*select an answer for all questions
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